Brick-mold-sanding machine.



Patented Aug. |41, |900. v

dwf/wier I g5 f H. SCHONMAKEB. BRICK MOLD SANDING MACHINE.

(Application led Apr. 21, 1900.

Engl.

(No Model.)

" rrnn are are tric@ BRICKUMOLD-SANDlNG MACHINE.

SPECIFICATION forming part of Letters Patent No. 655,740, dated August 14,1900.

Application filed April 21, 1900.

To a/Z whom t may concern:

Beitknown thatLHERBER'rSGHOONMAKER, a citizen of the United States, whose residence and post-office address is Roseton, county of Orange, State of New York, have invented certain new and useful improvements in Brick Mold Sanding Machines, fully described and represented in the following speci-l fication and the accompanying drawings, forming a part of the same. y

The object of the present invention is to furnish an attachment for a brick mold sander by which the brick-moldsmay be reversed When they are delivered from such machine and discharged in an upright position upon a table, from which they may be slid directly into the brick-machine.

In the present construction a cylindrical casing is used and provided with rotary heads to move the mold around within the casing, which is provided with a suitable supply of sand to sand the molds in their passage through the cylinder. The casing is termed herein the sanding-cylinder. The heads operate to invert the molds in carrying them around to the top of the cylinder, and means is provided to agitate the molds at this point to drop the surplus sand into the cylinder, so that the sand may be used again. The cylinder is supplied with additional sand from time to time; but the dropping of the surplus-sand into the cylinder avoids the resupply of the sand so frequently. The molds are taken from the top of the cylinder by a rotary device which restores them to an upright position and delivers them right side up upon a table, from which they may be removed or transferred automatically to a brick-machine.

The invention will be understood by reference to the annexed drawings, in which Figure l is a front elevation of the -ma- #chine with the hopper removed. Fig. 2 is a cross-section of the same. Fig. 3 is a plan of the reversing-cylinder with the upper half of the casing omitted to expose the interior of the parts. Fig. i is a plan of the apparatus as shown in Figs. l and 2, and Fig. 5 is a horizontal section through the center of the `sanding@cylinder with the shaft and heads inside the same.

a designates the sanding-cylinder, and a a Serial No. 13,716. (No model.)

`shaft extended through the same carrying heads h, having seats h and lugs g to receive the molds c. The sanding-cylinder is formed with an opening e upon one side near the top to receive the molds', and a guide or hopper f is used to hold the molds in an inverted position resting upon the heads. The heads, as viewed in Fig. 2, rotate to the right, so that as each mold falls upon one of the seats h the lug g carries it downward into and past the bottom of the cylinder. A blade or sandlifter g is affixed to the forward end of each seat to scrape the sand from the bottom of the cylinder, and as such scraper rises upon the farther side of the cylinder the sand slides from its upper surface into the open mouth of the mold, which is then turned upwardly, as indicated in the bottom mold in Fig. 2, which would still be held with its mouth upward when the sand-lifter had moved to the inclined position described. The head of the cylinder a has a hole to introduce a supply of the sand. Such construction and operation of brick-mold sander result, as shown in Fig. 2, in turning the mold in an inverted position when it is brought to the top of the sanding-cylinder. To discharge the molds in an upright position, I apply a reversing-cylinder d to an opening e in the top of the sanding-cylinder and extend ways o from the farther edge of such opening into the path of the molds, so as to transfer the same to theV bottom of the cylinder d. A shaft d is extended through the cylinder d, and disks h, having opposite fiat seats, are fixed upon the shaft and provided with projections h", adapted to engage the molds upon the Ways o and propel them around within the reversing-cylinder to turn them in an upright position and discharge them upon a table t.

The reversing-cylinder is formed with opening j at one side for the discharge of the mold, and strippers 7c extend from the edge of the table into the path of the mold (below the seats of the disk h) to discharge the same from the disks to the table. The projections h' extend close to the interior of the reversing-cylinder d, and they move with sufdcient velocity to drive the molds entirely out of the cylinder upon the table, which is set low enough to give the strippers a downward inclination to the table. A ledgeZ is provided TOO at thefarther edge of the table to retain the molds thereon when thus expelled from the reversing-cylinder. To strip the molds from the heads I), the ways o extend within the sanding-cylinder a, and to avoid interference with the heads such Ways are formed upon the ends of the cylinder-casings, as shown in Figs. l and 3. The molds are shown in Figs. l and 4 with the partitions adapted to form six bricks, and the ways o are extended into the ends of the cylinders far enough to engage the extreme ends of the molds. The heads b are fixed upon the shaft a to rotate next to the ways o. To engage the molds upon the ways o, the projections h upon the disks must extend within the sanding-cylinder a, and to avoid interference with the lugs g upon the heads h the disks are placed closer together than the heads, as shown in Fig. l, so as to swing between the same. The ways o extend across the opening e in the top of the sanding-cylinder, and as the mold is in an inverted position when passing over the ways it is in a favorable situation to jar off the surplus sand within the mold and discharge it directly into the lower cylinder. I effect such jarring by a succession of transverse teeth o', placed upon the ways to engage the edges of the mold as it is pushed forward over the ways. The ends of the mold drop repeatedly as they pass over the several teeth, and the surplus sand within the mold is thus loosened and dropped into the cylinder below. This part of my invention comprises any device adapted to jar the molds within the machine when they are stripped fromthe heads of the sanding-cylinderin an inverted position, as the sand dropped from the molds is thus returned to the cylinder to be reused in sanding other molds.

From the above description it will be seen that the cylinder d and the disks 71, form a reversing device which operates to turn the molds right side up in transferring them from the sanding-cylinder to the table To effect this, the reversing-cylinder is mounted over the opening in the top of the sanding-cylinder and is provided with the discharge-outlet upon one side and furnished with inclined strippers down which the mold readily slides as it is forced from the reversing-cylinder by the projections upon the disks. The rotary Yheads of the sanding-cylinder are commonly made with four seats having projections to propel four molds through the sand at each rotation, and the disks of the reversing-cylinder are rotated, so as to transfer each mold from the heads ZJ as the latter reaches the opening in the bottom of the reversing-cylinder. The reversing-cylinder requires merely to carry the molds through about one-half a revolution to reverse the position of the same, and to reduce the size of the reversing-cylinder the disks h are formed with only two seats and teeth, so that one may be receiving a mold while the other is discharging a mold to the table. With such construction the shafts a' and d are connected by gears fm, having the proportion of two to one, so as to rotate the disks h at twice the speed of the heads b, whereby the two projections h engage successively the four molds which are delivered at each rotation of the heads ZJ.

Vith the construction described the apparatus is adapted to automatically sand the molds, to jar the sand from the molds when in an inverted position over the sanding-cylinder, and to then reverse the molds and deliver them upon a table in an upright position sanded in readiness to place in the brick-machine.

I-Iaving thus set forth the nature of the invention, what is claimed herein isl. In a brick-mold-sanding machine, the combination, with a sanding-cylinder and rotary heads to move the molds therein, of a rotary device connected with such sanding-cylinder to reverse the molds, and a table, with means to strip the molds from the reversing device and deliver them right side up on the table.

2. In a brick-mold-sanding machine,a sanding-cylinder having rotary heads to move the molds therein, and having an opening at the side to insert the molds and an opening at the top to discharge the same, a reversing-cylinder mounted over the opening in the top of the sanding-cylinder with discharge-outlet upon one side, and ways adapted to transfer the molds from the rotary heads into the bottom of the leversingcylinder, and rotary disks in such cylinder with projections adapted to carry the molds around within the same and deliver them right side up to the dischargeopening.

3. In a briekmold-sanding machine,asand ing-cylinder having rotary heads to move the molds therein, and having an opening at the side to insert the molds and an opening at the top to discharge the same, a reversing-cylinder mounted over the opening in the top of the sanding-cylinder with discharge-outlet upon one side, ways at the ends of the sanding-cylinder to transfer the molds from the rotary heads into the bottom of the reversing-cylinder, rotary disks in such cylinder with projections arranged to clear the heads in the sanding-cylinder, and strippers arranged at the ends of the reversing-cylinder to transfer the molds from the disks and deliverthem upon a table. f

4. In a brick-mold-sanding machine,a sanding-cylinder having rotary heads with four seats and lugs to receive and propel the molds therein, the sanding-cylinder having an opening at the side to insert the molds and an opening at the top to discharge the same, a reversing-cylinder fitted to such top opening with ways to transfer the moldsk from the .heads into the bottom of such cylinder, disks with two projections rotated in the reversingcylinder to invert the molds, a stripper to discharge the molds from the disks to a table, and gearing rotating the disks at twice the IOO IIO

IZO

speed of the heads, as and for the purpose set forth.

5. In a brick-mold-sanding machine, the combination, With a sanding-cylinder having a casing with an opening in the top, and provided With a rotary shaft and heads to carry the molds around Within the casing, of means for jarring the molds When in the opening at the top of the casing, to drop the surplus sand into the sandingcylinder, and a rotary device to remove the molds from the sandingcylinder and reverse the same, as and for the purpose set forth.

6. In a brick-mold-sanding machine, the combination, With rotary heads, of a sandingcylinder inclosing such heads and having an opening to insert the molds and an opening at the top to discharge the same, Ways arranged in the top opening to strip the molds from the heads in an inverted position and means to jar the molds when over said opening to discharge the surplus sand into the cylinder.

7. In a briek-mold-sanding machine, the combination, with rotary heads, of a sandingcylinder inclosing such heads and having an opening to insert the molds and an opening at the top to discharge the same, and Ways o arranged and operated to strip the molds from the heads, and having projections to jar the molds when forced over the Ways, to thus loosen the surplus sand and discharge itinto the cylinder. p

8. In a brick-mold-sanding machine, the combination, With a sanding-cylinder having a central shaft With rotary heads having a series ofseats and projections to move the molds Within the cylinder, of a reversingcylinder upon the top of the sanding-cylinder with means to transfer the molds to the reversing-cylinder, a central shaft in such cylinder and heads having two seats and projections to reverse and deliver the molds, and gearing connecting the shafts to revolve them at speeds inverse to the number of their respective seats.

In testimony whereof I have hereunto set my hand in the presence of two subscribing Witnesses.

HERBERT SOHOONMAKER.

Witnesses:

THOMASY S. CRANE, WL I-I. VAN SUMBERGH.A 

